Lubricating device for gas engines



F'IELI.

R. JJBROEGE. .LUBRECATING DEVICE FOB GAS 'f:ENGlNES. APPLICATION man mrdmisls.

- Patented May 30, 1922.

' a SHEETS-SHEET 1.

R. J. BROEGE;

' LUBRICATING DEVICE FOR GAS ENGINES.

APPLICATiON FILED MAY 10, 1918.

Patented May 30, 1922.

3 $HEETSSHEET 3.

mvEN'ron vey, 1n the county of Cook and sages and ducts whereby said parts'are UNITED sures PAT'E ROBERT J. Bil-tones, or, nanvsir, ILLINOISV essronon To, BUDA I 1 PORATIQN or rumors v To all whom it my concern:

Be it known that I, -ROBERT J. Bnoncn, a citizen of the United States, residing-at Hat-- State of Illi- 1101s, have invented certain new and useful Improvements in Lubricating Devices for of which the followingis a has reference more particularly to improvements in lubricating systems. in. enginesof d this type, these their main objects,

improvements having for to increase efiiciencylin the operation of all moving engine partsyto provide in alubricating system an efficient force-feed mechanism together witha system of related oil-conducting chambers, gase ectually supplied with lubricant, or with an oil mist 0r fog developed therefrom; to provide .a lubricating system wherein the oil is recurthe-most economical man- 1 rently utilized in ner, and in which all dead ends or closed pockets of conduits are eliminated; and to provide a system wherein same are accessible for cleaning of overhaulin v lhese, together with such other objects as may hereinafter appear, or are incident to my invention, 1' attain by'means ofa construction illustrated in preferred form in the accompanying drawings, wherein- Figure 1 represents a vertical vsectional view of an'eugine to which my improved system is shown applied, certa1n-arts of the casin being broken away in di cal planes in order to disclose interior parts which would otherwise be obscured; Fig-F2 is a cross-sectional view taken transversely of the engine 1n Fig. 1; Fig. 3 IS an, enlarged detailed view in cross-section of. the well near the end of the cam-shaftyFig. 4 isabottom a view detailing the ducts crank-shaft and camshaftgb'e plan view of the same; Fig. 5 represents a similar view tothat in F ig. 3, buttakenat right-angles thereto, the pump-shaft gears being shown positionedfin the well; Fig. 6 is leading to the 8 and 9-rep'i'esent illustrations of the grooved crank-shaft bearings; and v tional view of thfefrelief valve: z 7,

Referring to the drawings, the crankcas- "shaft bearings 14, 15, and 16-,and

all parts of the.

- 12, the inlet end 25 mg line.

erent yerti- I armgs; Figs. 7 p i tionsof all the three cam-shaft bearings are .Fig. 10 is a=2sec- COMPANY, A "COR- .ttrnaroa'rmo l) EVICE non ens 'mremns. j

Patented y 30, 1922. 233,022. I

n u I I mg properco'mprises the upper half section 11 and the lower half section 12, and is provided with-a crank-shaft 13 having'a front lbearlng support 14, a central bearlng support 15, and a rear bearing support 16. The numoral l7 designates a cam-shaft having bearlugs 18 d sposed adjacently above the crank-' in circular portions 18f shaft. provided at its rear the false bottom 22 and'the angular-shaped base 23 of thelower caTsing section 12, the base being provided at its lowest point with a clean-out plug 24 above which the low and high oil level limits are clearly indicated by the dotted linesin Fig. 1 ofthe drawings. a Adjacent the rear or left end of the reservoir is a pump casing 25 having within it a pump 27 operatively disposed substantially midway of anoil conducting passage 26 leadmg angularly from the reservoir to a vertical passage 35 provided in the casing section of the passage 26 being protected by the screens 28. ,In 'order to keep the screen 28 free from settlings or impurr;

ties that would otherwise perhaps clog it, the screen is seatedin a is inclined u wardly to a point above its seathe pump'27 consists of a pair of meshed straight tooth gears to which rotary by means of a shaft 30 which is mounted vertically: in 'thecasing and at 'its upper end isrovided with a gear 3Ladapted to be driven 'ythe cam-shaft gear 19,'both of said gears adapted to' rotate. in the oil contained in the tell, the wall of'the latter at aa, oint 'above bearing 18 with an outlet or overflow opening 32. Just below this opening 32 I have provided the upper section of the cam-shaft bearing 18 with'ashort move 33, for collecting oil from the cam-she t surface and leading directly at'itsend into the well, while the lower secformed with through openings 34, as indicat'ed in Figs. 3 and 6.

; Located above the crank-shaft bearing 16 i in recess 29 and the base 23 i I its en I hole 34 inea'chof the for\ shaft.

Y conducting pipe 1 the main conduit 42'b'y a .rear cam-shaft bearing '18 vpassage or passage 44' sectin'g the downwardly inc-lined pipes is a portion 36 of the upper casing section 11, and disposed in substantial longitudinal alignment therewith are cast portions 37, 37, located above bearings 14 and 15, a main oil- 42 or conduit being mounted in'these portions 36 37 37 to extendllongitu- 'dinall ofthe casing section 11, and through walls out of the orbit otthe cranks 38, 38. End cleanout plugs-39 are provided for the outwardly extending ends of this pipe.

The central cast portion 37; while notfully shown in Fig, 1, is disclosed in Fig. 6, this showing being also applicable to ,the frontcast portion 37. By oeferring to Figs. 1, 2, .3 and 4, it will beseen that a by-pass or ofi'set recess 4()-'s formed in the lower portion of member 36 at the terminal of passage 35, by means "of! which oil is conducted to pipe 41, and to the (through its opening 34:) bye pipe 43. I In turn, a pipe or- 44 is provided to conduct oil from main conduit 42 v tothe rear crank-shaft bearin 'lti, andit will be noted that pipes 43am 44 do not intersect, the former receiving its supply of oil from by' pass 40 and the latter from conduit 42.

.- Referring now more'particula'rly'to Fig.

6, which illustrates the "ca'st portions 3],37, 30

of the casing located above theforward'and central crank-shaft bearings'l i, l5, respece tively, and in which the con uit 42 is mount. ed, 1 provide'in each ofthese portions a pipe leading similarly as does pipe 44 from'the conduit 42 tothe forward and to the central 'cra'nk shaft bearings li anch 15, and also embody in each of these said portions a pipe or p assage 43' leading: to the ard. and central bearings 18 of the cam-shaihthis pipe int-era the pipe 44" and receiving its supply of oil from it It \villalso benoted that the upper and lowerterminals, respectively, of

the passages 44' and 43' are providedtwith elean-out plugs 45 which are screwed into the sides-oi the castings. i

in order that the lubricant may reach the. crank-shaft in bearings 14, 15, 16, each of 44., 44., 44', communicates with an opening 47 formed in the upper bearing section 46 of the cranlt- This opening in turn leads to' an inner groove 48 in said section and thence into a groovef ifi in the'lower section, thereby. insuring thoroughlulu'icatioirat these bearings. 'lhe bearings for cranks 38. arenot grooved but receive a supply of oil from the grooves in the shaft bearings thronglrim 'cline'd ducts IilYformed' in the rrank-shaft. as shown. 'Zlhe' upper bearing sections of thecranks, which are associated w-ith the iitme'n or connecting rods an -a provided withopening'zs. similar to thoopenings -37,

which ineach case serveioheouduct oil to (13' the hearing about each ot/the. connecting b v thespri located just behind the portion 37 shown Should the pump 7 m mosa which may have worked into passages 01' pipes. l 1

In practice the oil pressure from 27. will perhaps approximate 30 )ounds. to the square inch per 1,000 B. P. I. of the 'ank-shaft. Therefore, venting hammeringand consequent breakage of parts, I provide a relief valve 'A',siuch'as that illustrated inv Fig. '10. wherein'the groove 48 mg 14 by means of The upper end of passage of the forward crank-she a' slot or openin'gjf55'.

54 is close I a seat for 57, the ball being normally held on its seat 58. below the sideapertures or outlets 59,

'ng 61. This relief valve" is at the right of Fig. 1. force a; isurplusageof oil toward 'the. bf ear+ ings, the excess )ressure inpthe systemopcrates to'lit't the ball 57- permitting a flowof oil through the lower relief aperture 59. lli illO event that the pressure should tend to presstthe ball sidewise intoqthis aperture, thenioil will flow outwardly through Theseapertures are formed in the forward transverse partition 62 ot' the casing section 11, and above the level of the camshaft bearings 18. The oil discl'iarging from apertures 59 and (it) spills downwardly past the the upper apertu're 60.

nt that with a view of pre- 1 verttcal passageway 54 thereof connects withth'e;

it bear d by the" plug 56, below which-the passage is enlarged .to receive and form past the ball 'and thence foreign matter or dirt the valve ball lie front crank-shaft bearing 14 into a. pocket 'orirell 63 former-l in the forward end of the lower section 12 ot' the casing, and overflows from that, pocket over adam 64 on to the falsebottom 2:2 and thence ervoir 21 through the opening (55 formed centrally'in' said talse'bottom; Thedani 64 is constructed sutliciently high enough to maintain the teeth. at the. tiining gearbG in aconstant bath of oil; t

During. the running ofwhole interior ofithe fine vapor of. oil of about the consistency 0 too The rapid action ofthe moving parts with respect .to the lubricant and lubricant overflow". causes-this foot to form, and circa late and permeate into every nook and the engine the" casing is filled with a flows into the res- ;.-mg covering casing 67 and tappets 68, this fog passes through holes 69 formed dult 42 and to the rear cam-shaft bearing 18.

' 1e groove 33 formed in this hearing catches oil during camshaft rotation and in feeding into-well 20 tends to keep the well replen ished', overflownaturally passes out of the well through outlet 32 and spills on to the moving-cam and crank shafts, and that portion of the overfl which has not been into Oll mist passes through opening65 into the reservoir for further circulation. A

s a ready described, the crankbricated. by the main- 44 and M; the front i the bearin'gs about the cranks 38 by ducts 50; gears 19 and 31 by the oil bath in well 20; timing he oil in well 63 and all valve he oil pump, it will he noted, is submerged and its suction end so arranged as to have the intake on a level with the low oil level which is above the settling sump.

' 'l is eventually deposited or discharged on to the false bottom and thence fl the reservoir for re circulation through the system.

lVhat I claim is:

1. In combination, an ing a bearing and an oil leading to said bearing, said passage, and a -gear pocket. formed in thec'asing ing and adapted to saidrelief valve.

2. In combination, an engine casing having a bearing, an oil conducting passage leading thereto, a relief vfor said \passage mounted in said bearing, a gear disposed adjacent said bearing, and an oil wellfor said gear adapted to said relief valve.

-1. Inmombinatiou, an

engine casing havbearreceive the overflow from taming walled pocket, a pumping In combination, an engine casing formed u wardly 'luhricate gears-19 and 31,

. bearings by pipes 43" s which branch from the pipes'44;

; theconnecting generated dur-.

. SRI Cl pocket.

All surl ows into having engine casing havreservoir and formed with an 011 0011- (eliver oil. to said pocket .durlng gear ro- 5.' {In combination, an engine casing formed with an oilcontai with said passage and pump actuating gearing disposed in said pocket to rotate in the Oll contained therein,

he casing extend' wardly below the point of intersection of the l passages, and plug cl 4. The combination with an I earings force feed lubricatlng device der pressure to-the earings of said shafts, and a relief Valve therefor positioned insaid casing at a point above the maximum swing of th shaft bearings andthe lowest arcs'of the cam-shaft bearings. 1

The combination with an an upper lower crank-shaft in sai casing, 21

engine casing cam-shaft hearing and a a ring, of an portion of aving a duct communicating with the crank:

shaft bearing," and a pair of ducts-independlngs.

e crank- I oil reservoir 0 casing above-t e by-pass and cam-sh aft bearing.

eanout means for 10. In a engine, the combination with their supply of oil from said conduit at the an engine casing and its crank and campoint 0t intersection and being capable of shafts and bearings therefor, of a main oil conducting thesame to said bearings, said 10 conduit adjacent one of said shafts, a force passages extending through a cast portion feed lubricating device for conducting oil of the casing, and removable plug means in under pressure to said conduit, intersectingv said casing portion for said assages.

ROBERT BROEGEF passages constructed and arranged to receive 

